NEW YORK — A mother returned home to her luxury apartment building near Central Park on Thursday to find two of her small children stabbed to death in a bathtub and their nanny, with self-inflicted stab wounds, lying near them, police said.

Typical Upper West Side Manhattan Street ----->

The nanny, who was found near a knife, was hospitalized in critical condition and was in police custody, and authorities said she is suspected of killing the children, who were pronounced dead at a hospital.

The children's father, CNBC digital media executive Kevin Krim, who had been away on a business trip, was met by police at the airport on his return and was given an escort to the hospital where his loved ones had gathered.

The couple's apartment building sits in one of the city's most idyllic neighborhoods, a block from Central Park, near the Museum of Natural History and blocks from Lincoln Center for the Performing Arts. The neighborhood is home to many affluent families, and seeing children accompanied by nannies is an everyday part of life there, making the idea of such violence even more disturbing to residents. Read more;